5 Carat Ruby (Cabochon, 11.7×7.8mm, Red)
Color:
Actual size is set for screen
How big is a 5 carat cabochon-cut Ruby?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 5ct cabochon-cut Ruby would be around 11.7×7.8 mm (±6%). The lw ratio of this Ruby is 1.5. See below how big it looks on a ring and finger.
Ring:
Skin tone:
|
Ring width:
3.0 mm
|
Saved...
64 mm
| Your settings | |
|---|---|
Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
Finger coverage |
47 % |
|
Saved...
|
|
|
Ring diameter:
16.9 mm
|
Additional Info
Ruby is a red to pink variety of the mineral Corundum. Its name comes from the Latin word "ruber", which simply means "red". Most Rubies on the market are heat-treated to enhance their color and clarity.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
|
Name:
|
Ruby |
|
Mineral Group:
|
Corundum |
|
Shape:
|
Cabochon |
|
Chemical Formula:
|
Al2O3 |
|
Crystal Structure:
|
Hexagonal |
|
Hardness:
|
9 |
|
Specific Gravity
|
4 |
|
Carat weight:
|
5 ct |
|
Gram weight:
|
1 g (0.0353 ounces) |
|
Points:
|
500 pts |
|
Length:
|
11.7 mm |
|
Width:
|
7.8 mm |
|
Est. face-up size:
|
74.83 mm² |
|
Volume:
|
250 mm³ |
|
Length-to-width ratio:
|
1.5 |
|
Refractive Index:
|
1.76 - 1.77 |
|
Luster:
|
Vitreous to adamantine |
|
Wearability:
|
Excellent |
|
Care Instructions:
|
No special or unusual care |
|
Color:
|
Ruby can be found in the following colors:
 
|
|
Birthstone:
|
Ruby is a birthstone for the month of July |
Popular comparisons:
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 5ct Diamond (Cabochon, White, 12.21 x 8.14)
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 8ct Ruby (Cabochon, Red, 13.68 x 9.12)
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 1ct Ruby (Cushion, Red, 5.59 x 5.59)
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 1ct Ruby (Oval, Red, 7.56 x 5.04)
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 1ct Sapphire (Cabochon, Blue, 6.84 x 4.56)
- 5ct Ruby (Cabochon, Red, 11.7 x 7.8) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 3ct Ruby (Cabochon, Red, 9.87 x 6.58) vs. 5ct Ruby (Oval, Red, 12.93 x 8.62)